The recommended maximum pressure differential for the standard RFN Series filters is 75 psi up to 86 °F (30 °C), 50 psi up to 158 °F (70 °C), and 35 psi up to 180 °F (82 °C). For the GN Series filters with glass filled nylon cores, recommended maximum pressure differential is 90 psi up to 86 °F (30 °C), 80 psi up to 158 °F (70 °C), 70 psi up to 212 °F (100 °C), and 50 psi up to 300 °F (150 °C).
If the fluid filtered is compatible with polypropylene and temperature below 194 °F (90 °C), Profile II RF Polypropylene Series elements, described in Data Sheet E1 and Bulletin PRO 400, may be suitable. Pall Corporation’s Scientific and Laboratory Services group will supply compatibility information for both nylon and polypropylene upon request.
1 Extrapolated values.
2 Pressure drop in PSI per GPM for a single 10″ module. For multiple elements, divide by number of modules. For fluids other than water, multiply by viscosity in centipoise.
3 For longer modules, increase the flow rates listed in proportion. The flow rates listed do not take into account pressure losses due to flow in the internal diameter of the element, which becomes significant above about 40 to 60 cfm.